github - ghsa-f688-j3hq-jm53

GHSA-F688-J3HQ-JM53

Vulnerability from github – Published: 2025-12-24 12:30 – Updated: 2025-12-24 12:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ceph: fix potential use-after-free bug when trimming caps

When trimming the caps and just after the 'session->s_cap_lock' is released in ceph_iterate_session_caps() the cap maybe removed by another thread, and when using the stale cap memory in the callbacks it will trigger use-after-free crash.

We need to check the existence of the cap just after the 'ci->i_ceph_lock' being acquired. And do nothing if it's already removed.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53867"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T11:15:51Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix potential use-after-free bug when trimming caps\n\nWhen trimming the caps and just after the \u0027session-\u003es_cap_lock\u0027 is\nreleased in ceph_iterate_session_caps() the cap maybe removed by\nanother thread, and when using the stale cap memory in the callbacks\nit will trigger use-after-free crash.\n\nWe need to check the existence of the cap just after the \u0027ci-\u003ei_ceph_lock\u0027\nbeing acquired. And do nothing if it\u0027s already removed.",
  "id": "GHSA-f688-j3hq-jm53",
  "modified": "2025-12-24T12:30:26Z",
  "published": "2025-12-24T12:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53867"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b2515b8095cf2149bef44383a99d5b5677f1831"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/448875a73e16ba7d81dec9274ce9d33a12d092fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aaf67de78807c59c35bafb5003d4fb457c764800"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae6e935618d99cdba11eab4714092e7e5f13cf7e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-53867 (GCVE-0-2023-53867)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:55 – Updated: 2025-12-24 10:55

Title

ceph: fix potential use-after-free bug when trimming caps

Summary

In the Linux kernel, the following vulnerability has been resolved: ceph: fix potential use-after-free bug when trimming caps When trimming the caps and just after the 'session->s_cap_lock' is released in ceph_iterate_session_caps() the cap maybe removed by another thread, and when using the stale cap memory in the callbacks it will trigger use-after-free crash. We need to check the existence of the cap just after the 'ci->i_ceph_lock' being acquired. And do nothing if it's already removed.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2b2515b8095cf2149…
	https://git.kernel.org/stable/c/448875a73e16ba7d8…
	https://git.kernel.org/stable/c/ae6e935618d99cdba…
	https://git.kernel.org/stable/c/aaf67de78807c59c3…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2b2515b8095cf2149bef44383a99d5b5677f1831 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 448875a73e16ba7d81dec9274ce9d33a12d092fb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ae6e935618d99cdba11eab4714092e7e5f13cf7e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < aaf67de78807c59c35bafb5003d4fb457c764800 (git)

Linux

Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ceph/caps.c",
            "fs/ceph/debugfs.c",
            "fs/ceph/mds_client.c",
            "fs/ceph/mds_client.h",
            "fs/ceph/super.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2b2515b8095cf2149bef44383a99d5b5677f1831",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "448875a73e16ba7d81dec9274ce9d33a12d092fb",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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            "fs/ceph/debugfs.c",
            "fs/ceph/mds_client.c",
            "fs/ceph/mds_client.h",
            "fs/ceph/super.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "unaffected",
              "version": "6.1.28",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.15",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.3.2",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.28",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.2.15",
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix potential use-after-free bug when trimming caps\n\nWhen trimming the caps and just after the \u0027session-\u003es_cap_lock\u0027 is\nreleased in ceph_iterate_session_caps() the cap maybe removed by\nanother thread, and when using the stale cap memory in the callbacks\nit will trigger use-after-free crash.\n\nWe need to check the existence of the cap just after the \u0027ci-\u003ei_ceph_lock\u0027\nbeing acquired. And do nothing if it\u0027s already removed."
        }
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        "dateUpdated": "2025-12-24T10:55:25.430Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        {
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      "title": "ceph: fix potential use-after-free bug when trimming caps",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53867",
    "datePublished": "2025-12-24T10:55:25.430Z",
    "dateReserved": "2025-12-09T01:27:17.829Z",
    "dateUpdated": "2025-12-24T10:55:25.430Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-F688-J3HQ-JM53

CVE-2023-53867 (GCVE-0-2023-53867)

Tags

Sightings

Nomenclature